Old people in rural areas say that sweet potatoes have a high yield and do not need water. Is it really necessary to grow sweet potatoes without watering them?

Sweet potato is a drought-tolerant crop, and too much water is not conducive to the improvement of yield. It is particularly afraid of water accumulation, especially after potatoes are produced, which has a great impact on yield. Secondly, the unstable dry and wet growth environment will cause the internal growth speed of sweet potato root system to be different, which is easy to cause the phenomenon of sweet potato epidermis cracking. Sweet potatoes are afraid of waterlogging and drought, and management is more troublesome. Therefore, people often say that "the dry root is long, the wet root is long, the dry root is long, and the wet root is long". The image specifically illustrates the demand for water for sweet potatoes, which should not be too dry or too wet. It is necessary to water them reasonably and try to maintain a stable dry and wet environment.

Sweet potato seedlings are generally not watered before they are unearthed, and high temperature can be used to accelerate germination. If the temperature of the seedbed is too high and the soil is too dry, it is best to spray it on the seedbed with a sprayer. Of course, special attention should be paid to the temperature and humidity of the seedbed after emergence. When it turns white, we need to water it in time. When the soil is too dry, we can mix it with fertilizer and water and disperse it to promote the growth of seedlings. After the sweet potato is planted, biogas slurry or diluted manure can be applied as seedling fertilizer at one time, and then artificial weeding and soil cultivation can be carried out after fertilization. After 30 to 40 days of sweet potato planting, the water demand began to increase. When the weather is dry, water it in time, and it is easier to control the amount of water by furrow irrigation or watering.